Heater for incubators.



A. W. TIBBALS & C. D. YOUNG.

HEATER FORINGUBATORS. APPLICATION FILED NOV.l 21, 1910.

4 'Patented Jan.23,1912.

2 SHEETS-SHEET 1.

INI/ENTOR Zz: Uf WbbC/z@ A. W. TIBBALS & C. D. YOUNG. HEATER PoR INGUBATORS.

APPLICATION FILED NOV. 21, 1910.

1,015,361. Patented Jan. 23, 1912.

2 SHEETS-SHEET 2.

ARTHUR W. virritants ANI) CARI. DWIGHT YoUivegoF DELWAHE, oHIo.

HEATER. non INCUBATRS.

Specification-:of Letters Patent. lPatented Jan. Application filed November 21, -Serial No. 593,521.

To all whom it may concern:

Be it known that we, ARTHUR W. JTIBBALs and CARL DWIGHT YOUNG, citizens of the United States, residing at Delaware, inthe county of Delaware and State ofOhio, have invented certain new and useful Improve-y ments in Heaters for Incubators, of which the following 1s a specification, reference being had therein to the accompanying drawing.

This invention has special reference to heaters for incubators provided with means for automatically shutting olf the heat from the incubator chamber when a certain temperature is reached therein. i

The invention has for its object to provide an incubator heater having improved means for controlling the inlet of heat tothe heating tank of the incubator.

The invention has for its object to prevent the incubator from becoming overheated;

to utilize less water for heating; to quickly heat the water and" cause it tocirculatev faster and to provide anveven heat for all parts of the incubator. N i

The invention further has i forits objectv to provide an improved incubator heater as hereinafter set forth and claimed, which will be simple in construction and effective in operation. I

Referring to the accompanying drawings:

Figure 1 is a view in perspective of a por-y tion of an Incubator and the heating apparatus therefor, constructed in accordance with this invention. F1g.2 is an enlarged detail view in vertical sectionofthe 'water heating tank and its connections. Fig.K 3 is a detail view of a portion of the thermostat mechanism. Fig. 4 is Yan enlarged .de-f tail view of a portion of' the heating tank in horizontal section. Fig.. 5 is a plan view ofthe incubator chamber with the top removed. Fig. 6 is an enlarged view in longitudinal section of aportion of the incu-` bator and in verticalk section of the heating.

tank and heater mounted on thev outside of4 the incubator on the line X-X, 5. 1,

In carrying out the `invention a casing 1l is provided forming the. incubator chamber and mounted on suitable supportsi. Within the incubator chamber is ashelf 3 on which are laid the eggs as shown in dotted lines, Fig. 6. The incubator vchamber is heated by the following means: A lamp 4 is supported on a lshelf 5 mounted on the side of theinrelates to incubatore and cubator chamber."

cubator chamber, the lamp 4 having a inetallic cylindrical chimney 5 with an aperture 6^ ,inV one side covered with mica, and with apertures 5 adjacent to its upperend for the escape of heat. The chimney 5 projects 'up into the lower'end ofa cylinder 6,

the upper end of the chimney` 5 being formed with anannular flange lV which rests upon. an annular flange 8 Jprojecting from the inner side of the lower end of the f casing. 6 and `serving vas a support forthe upper end ofthe chimney. `The lower enolof the casing 6 is preferably formed byhav- 'ing ai'portionv thereof folded uponI itself.v

To retainthe heat within the casing' 6 it is f preferably provided with an asbestos lin.

'ing 9. i The casing 6 is provided adjacent to Itis upper end with lateral openings ,10 forxthe escape of heat. Mounted inthe lowery portion of -thej casing k6 j above the upper end of the chimney 5V is ahoodv 1.1 formed like a frustum of a cone and open at each end. VThe upper end of the 'hood' 11 1s located at the lower open end of a'cone-y shaped funnel 12- having its upper end supportedV at the' topV 13-fof thecasing 'fby any Y suitable means, and as here shown, by a {iange 14 yresting upon the top. 13. Secured to and depending fromthe top 13 in lthe casing 6 isa heating tank 15-preferably hav- Y ing its sides formed with vertical corruga-V tions in. order to present a large heat radi#VK ating surface to the `small body' of .water contained in the tank l5. The lower end of the Vtank 15' is secured'to,the-lowerend of theconeshaped funnel 12"formingy therewith the water heating tank. To heat the incubator cham- :ber there are. located inthe latter, longitudinal pipesy 16, connecting. with transverse pipes 19 intermediate of the ends of the in- A diaphragm 20 in the pipeL v18A separates the. adjacent openings at f ingl with the pipe` 18,. the other end ofthe oneend.' ofthe pipesl and 22l commnnicatpipe 21 communicatingwith a small vertical chamber erpassage way` 23 located` in the I side of the tank l5and open at its lower end at a short distance above the bottom ofthe tank 15.l The pipe 22, which Ais similar to the pipe 21V projects `.through the wall of the casing I6 and into the tank 15; and hask its inner end opening intoV the latter. It will be seenthat by means of this construction the water heated-in' thetank 15'will be circulated through the pipesflG, 17, 18, and v19 and through the pipe 21 andthe casingy The arm 27 is formed with a curved endv portion 28 to the end of which is pivote'd at 29 an arm 30 having a depending fulcrum pin 3l, the arm 30 having an inclined depending arm 32` from the lower end of which extends a horizontal arm 33, through a slotted plate 34 in the side of the casing. Adjustably mounted on the end of the arm 33 is a vertical rod 35 having a screw threaded portion 85 on which is mounted a thumb nut 86 located beneath the arm 33 and adapted to limit the upward movement of the rod 35." The upper end of the rod 35 is secured to a hinged member 37 mounted on the pin 38 projecting from any arm 39 extending at an angle `from the sideof the casing. A lever rod 40 extends through the hinged member 37 and has mounted on one end the counter weight 4l and has its other end formed with a curved portion 4t2 which is pivotally connected to the upper end ot' a rod 43 extending down through the funnel l2 and hood 1l and having mounted on its lower end a disk or damper 44C adapted to close the upper end of the chimney 5 when lowered on to the same.

By means of the construction hereinbefore described when the temperature in the incubator chamber has reached a certain point, the thermostat in the incubator chamber will, by its expansion, cause the arm to be lifted, thereby raising the rod 35 and acting on the lever rod 40, moving the damper 44E downward to close the top of the chimney 5, thereby preventing the escape of heat upward and aroundthe water heating tank. Vhen the chimney 5 is closed as aforesaid the heat from the lamp escapes throughthe opening 5" and the heat in the upper part of the casing 6 escapes through the openings l0.

It will be seen by means of the foregoing description that a simple and eiiective incubator is provided by means of which when a certain temperature is reached the heat will be quickly removed from the heating tank and the incubator chamber prevented from becoming overheated. It will also be seen that by means of this invention an ample heat radiating surface will be provided for a comparatively small body of water.

It will be understood that the incubator chamber may be used as a brooder as well vas an incubator, the construction and arrangement of parts being such as to adapt it for either use.

Having described the invention, what we claim is:

Inv an apparatus of the character described, a cylindrical casing lined with asbestos and having air outlet openings at its upper end and an annular internal flange adjacent to its lower end, a lamp having a metallic chimney with outlet openings adjacent to the upper end thereof and a fiange at its upper end, resting on the annular internal flange of the casing, a hood mounted in said casing above said chimney and open at each end, a water tank with vertical corrugated sides depending from the top et said casing and spaced from the sides of the latter, and formed with a vertical funnel open at each end and projecting through said tank and secured at its ends to the top of said casing and to the lower end of said tank, the lower end of the funnel being located above the hood, a vertically movable rod projecting through said funnel and hood above said lamp chimney and havingl a damper at its lower end above said chimney to close the latter, a heating chamber, hot water circulating pipes located in said chamber and connected with said water tank, and a thermostat in said chamber operatively connected with the damper rod.

In testimony whereof we hereunto ax our signatures in presence of two witnesses.

ARTHUR W. TIBBALS. CARL DWIGHT YOUNG.

Titnesses EUGENE S. OWEN, F. A. OWEN.

Copies of this patent may be obtained for ave cents each, by addressing the Commissioner of Patents, Washington, D. C. 

